/usr/lib/klibc/include/setjmp.h is in libklibc-dev 1.5.25-1ubuntu2.
This file is owned by root:root, with mode 0o664.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | /*
* setjmp.h
*/
#ifndef _SETJMP_H
#define _SETJMP_H
#include <klibc/extern.h>
#include <klibc/compiler.h>
#include <stddef.h>
#include <signal.h>
#include <klibc/archsetjmp.h>
__extern int setjmp(jmp_buf);
__extern __noreturn longjmp(jmp_buf, int);
/*
Whose bright idea was it to add unrelated functionality to just about
the only function in the standard C library (setjmp) which cannot be
wrapped by an ordinary function wrapper? Anyway, the damage is done,
and therefore, this wrapper *must* be inline. However, gcc will
complain if this is an inline function for unknown reason, and
therefore sigsetjmp() needs to be a macro.
*/
struct __sigjmp_buf {
jmp_buf __jmpbuf;
sigset_t __sigs;
};
typedef struct __sigjmp_buf sigjmp_buf[1];
#define sigsetjmp(__env, __save) \
({ \
struct __sigjmp_buf *__e = (__env); \
sigprocmask(0, NULL, &__e->__sigs); \
setjmp(__e->__jmpbuf); \
})
__extern __noreturn siglongjmp(sigjmp_buf, int);
#endif /* _SETJMP_H */
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